ISS Images, Dec 6 2017, 15:03 UTC

RadFxSat Fox 1B

Picking up RadFxSat Fox 1B on her first pass over Cornwall, FM on 145.960 adjusted for Doppler. The initial TLE data is pretty accurate. Receiver is the Airspy HF+, antenna general log periodic for 130 MHz to 1.3 GHz.
Audio
Click here for an audio recording (MP3)
Station Info
http://www.sdr-satellites.com/

Airspy HF+ & NOAA 18

Overhead Pass
Here's an example of the HF+ receiving the NOAA 18 APT weather satellite, the antenna is a log periodic covering 130 MHz to 1.3 GHz. The HF+ is very sensitive and very quiet - no mixer products, spurs, or artifacts at all.
Low Angle Pass
Here's an image from NOAA 18 but a moch lower angle - 13 degrees. You see noise on the image, but nethertheless an excellent copy.

Another Airspy HF+

My second Airspy HF+ arrived today fresh from the production run, below are a couple of screenshots from BBC Radio Cornwall on 103.9 MHz. In the main photo you see the packaging!
Well worth waiting for, no-one will be disappointed.

LimeSDR Transmitting

I spent a day working on transmit support for the LimeSDR. This is by no means finished, but I'm able to say that it works. I have a few problems,
Big spur at 0Hz, probably generated by a bad software mixer,
Noise bursts when switching from receive to transmit.
The above are down to my own software, so I'll give myself a good kicking sometime and get this fixed later in 2017 or early 2018.
Here we see the Upper Sideband (USB) signal as received with an Airspy HF+.
And here's the TX panel from SDR Console.

LimeSDR TransmittingPosted 4 months agoI spent a day working on transmit support for the LimeSDR. This is by no means finished, but I'm able to say that it works. I have a few problems,
Big spur at 0Hz, probably generated by a bad software mixer,
Noise bursts when switching from receive to transmit.
The above are down to my own software, so I'll give myself a good kicking sometime and get this fixed later in 2017 or early 2018.
Here we see the Upper Sideband (USB) signal as received with an Airspy HF+.
And here's the TX panel from SDR Console.